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Atlantic White Sided
Dolphin
Scientific Name: Lagenorhynchus
acutus
Weight: 350-500 pounds
Status: non endangered
All whales,
dolphins and porpoises are members of the scientific order
Cetacea. When classifying these animals, Cetacea is broken
down into two sub-orders: Odontocetes and Mysticetes.
Odontocetes are whales that have teeth, such as these
dolphins. Mysticetes are whales that have baleen, such as
humpback whales.
Dolphins use their teeth to grab individual fish from a school
of fish and then swallow their prey whole, but how do they
locate those fish in the first place? They use echolocation,
or
sonar. The dolphin emits a series of high frequency sound
pulses from an organ in the front part of its head called the
melon. The sound waves travel through the water ahead of the
dolphin and bounces off any object in its path. The sounds
waves are received back to the dolphin’s lower jaw and are
transmitted to the inner ear. The information that comes back
to the dolphin indicates the distance, size, shape and
movement of the object in its path.

White sided dolphins are highly social animals. They travel in
groups called pods. The size of the pod can vary from a half
dozen individuals to possibly thousands of individuals. Also,
two types of pods have been observed. One type is called a
nursery pod consisting of related females and their young. The
other is known as a bachelor pod consisting of adult males.
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